Elements of Life 1 - 3

Question 1

Which type of atomic orbital is shown in the picture?

Accepted Answer

p-orbital

Question 2

How much energy does a photon of electromagnetic radiation with a wavelength of 400 nm have?

Accepted Answer

4.97 x 10-19 J

Question 3

What was the key conclusion from the Geiger-Marsden (Rutherford) gold foil experiment?

Accepted Answer

Atoms have a small, positive, central nucleus.

Question 4

In the fusion reaction between hydrogen-2 and hydrogen-3 nuclei, a neutron and what is formed?

Accepted Answer

A helium-4 nucleus

Question 5

In a fusion reaction, lighter nuclei join to form heavier nuclei under what conditions?

Accepted Answer

High temperature and pressure

Question 6

In which Block of the Periodic Table is an element with the electron configuration [Ar]3d54s2?

Accepted Answer

d-block

Question 7

Infrared, visible, ultraviolet - these electromagnetic radiations are in order of...

Accepted Answer

increasing freq., decreasing wavelength, increasing energy.

Question 8

Which of the following is a correctly written electron configuration for a phosphorus ion, P3-?

Accepted Answer

[Ne]3s23p6

Question 9

What is the relative atomic mass of this element, given its mass spectrum?

Accepted Answer

35.5

Question 10

'Sets of coloured lines on a dark background that converge at higher frequencies', describes...

Accepted Answer

An atomic emission spectrum

Question 11

The flame colours of Li+, Na+, K+, Ca2+ and Ba2+ are which of the following?

Accepted Answer

Bright red/crimson, yellow, lilac, brick red, apple green.

Question 12

What does Ar mean?

Accepted Answer

Relative atomic mass

Questions 12